-LRB- CNN -RRB- Six suspects linked to terrorist activity referred to Syria and Iraq as `` the beach , '' and used other coded language to avoid detection in the United States , authorities say .

The Bosnian immigrants , including a husband and a wife , were arrested this month in Illinois and St. Louis , according to court records released Friday . Three of the suspects are naturalized American citizens .

A federal indictment alleges they communicated via social media and conspired to send money and military equipment to terrorists in Syria and Iraq . They allegedly shipped firearms accessories , military uniforms and combat boots through intermediaries in Turkey .

Suspects named in the indictment are Nihad Rosic , Armin Harcevic , and married couple Ramiz and Sedina Hodzic , all from St. Louis , along with Illinois residents Mediha Salkicevic and Jasminka Ramic .

They face various charges , including conspiracy to kill , and sending money and weapons to terrorists , the indictment shows .

Also named in the indictment is Abdullah Ramo Pazara , who allegedly traveled to Syria and Iraq to support terrorists .

To support Pazara , the suspects sought out backers in the U.S. and used the money to purchase military supplies , which they sent to him , the indictment said .

They used coded words and nicknames on social media to avoid detection , referring to each other with titles such as `` lions or Bosnian brothers , '' the indictment alleges .

Pazara traveled to Syria in July 2013 , and allegedly started receiving money from the defendants within a month . Shipments of military equipment soon followed , according to the indictment .

Federal prosecutors indicted the six suspects this month in St. Louis County .

Information on their attorneys was not immediately available .

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The six suspects include a husband and wife

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They were arrested this month in Illinois and St. Louis , according to court records